Improvement in hand-spring poe machinery



PARLEY HOWE, OF STFFORDVILLE, CONNECTICUT.

I Leiters Patent 1%.,645318, dfled April 30, 180i;

IMPROVEMENT IN HAND-SPRING I'OR MACHINERY.

TO .ALL INI-IOM IT MAY CONCERN: v

Be it known that-I, PARLi- HOWE, of' Stati'ordville,.iu the county ofTolland, and State of Connecticut, 'have invented a new and improvedHand-Spring for Machinery; and I do hereby declare that the following isa full, clear, and exact description thereof, which will enable othersskilled in the art to malte and use the same, reference being had to theaccompanying drawings, forming part of this specification.

The present invention relates to a hand-spring for the starting andstopping-of looms and other machines, which hand-spring is of' such aconstruction and arrangement that itv can be operated with the utmostfacility, ease, and readiness, will be obvious from the following detaildescription of the same, reference being had to the aceolnpanying plateot' drawings, in which-- Figure l is a front view of the hand-springshowing a portion of one ot' the end fra-mes Vof the loom; and

Y Figure Q, a vertical section taken in the plane of the line x z, lig,L

Similar letters of reference indicate like parts. p Y

A, in the dra-wings, represents the lever or arm of the hand-spring7which lever, at its lower end, is hung upon a fulcrnm at B, between thelugs C ot' the end frame D, and at its upper is provided with a handle,for convenience in operating it, this lever or arm being connected withthe driving parts of the loom in the ordinary manner, so that it willserve to start or stop the same according as it is moved either one wayor the other. To this lever or arm A, near its lower end, is hung,through a wire loop, F, the loose end 'of :L bent spring, G, that, atits other end, is fixed to the end frame D, toward the upper odge of thesame, this spring being provided with a clasp, H, between its loose andfixed ends, that, having a thumb-nut I screwed upon its end passedthrough the end frame D, allows the tension of the said spring toberegula-ted at pleasure. The upper portion Vof the hand-leverA movesand plays in and between the sides of a horizontal guide-arm' or bar, J,fixed to the frame D, which 'a-rln J, at or near its outer end, isnotched, so as to allow the arm, when swung or moved out to that point,to fall into it and becoming thus there locked and held, as it were, theaction of `the bent spring being not only to throw the lever-arm A intosuch notch, but also. when disengaged therefrom, to draw ittowarcl theother end of the guide-arm or bar J. i

I claim as new, and' desire to secure by Letters Patent- 'lhehandspring, constructed, arranged, and applied substantially as and forthe purpose described.

,Y PARLEY HOWE.

'Witnesses -V HENRY CONVERSE, E. A. CONVERSE.

